It is delusional to think that the Republicans will ever be shamed into cooperation. They don't care, their voters don't care, and high-minded speeches about the need for civility are the stuff of a comedy sketch if delivered while the listener is in the process of hacking you to pieces.
Sorry, I can't take anyone seriously who doesn't see a problem with that philosophy.
Authoritarianism consists in undemocratic rule in which obedience is brutally enforced, and dissidence suppressed, using the security apparatus of the state.
Authoritarianism does not consist in using every avenue allowed within the rules of a democratic system in order to exercise power, even if it's "not nice".
Again, it's genuinely puzzling how you could conflate these two things.
We all need to just detach, because what is DC really going to do for you? I don't know, but I would put serious money on it being negligible to the impact of your immediate family, friends and community.